Nouns denoting natural phenomena

alternation of generations
the alternation of two or more different forms in the life cycle of a plant or animal
when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands
peptide bond
the primary linkage of all protein structures; the chemical bond between the carboxyl groups and amino groups that unites a peptide
midnight sun
the sun visible at midnight (inside the Arctic or Antarctic Circles)
a drop of rain
a secondary and sometimes unexpected consequence
an arctic atmospheric condition with clouds over snow produce a uniform whiteness and objects are difficult to see; occurs when the light reflected off the snow equals the light coming through the clouds
solar flare
a sudden eruption of intense high-energy radiation from the sun's surface; associated with sunspots and radio interference
pleochroism of a crystal so that it exhibits three different colors when viewed from three different directions
aerodynamic force
forces acting on airfoils in motion relative to the air (or other gaseous fluids)
heat of vaporisation
heat absorbed by a unit mass of a material at its boiling point in order to convert the material into a gas at the same temperature
reaction propulsion
propulsion that results from the ejection at high velocity of a mass of gas to which the vehicle reacts with an equal and opposite momentum
strong breeze
wind moving 25-31 knots; 6 on the Beaufort scale
a response that reveals a person's feelings or attitude
atomic power
nuclear energy regarded as a source of electricity for the power grid (for civilian use)
a sudden violent change in the earth's surface
the formation of crystals
very high frequency sound; used in ultrasonography
Kuroshio current
a warm ocean current that flows northeastwardly off the coast of Japan into the northern Pacific ocean
a bright spot on the parhelic circle; caused by diffraction by ice crystals
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